33 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential Diagnosis ... Osmolarity 3) Urine Sodium ... Acid → SIADH - High ... Uric Acid → renal ... #Algorithm #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
diuresis can be high ... Hypothyroidism, Adrenal Insufficiency ... #differential #diagnosis ... #table #sodium ... #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Repeat the sodium ... hypothyroidism • adrenal insufficiency ... Hypernatremia #Diagnosis ... Workup #Algorithm #Nephrology
Etiologies of Hypoaldosteronism

Hyporeninemic Hypoaldosteronism (Low Renin, Low Aldosterone)
 - Diabetic Nephropathy 
 - NSAIDs
Non-Hyporeninemic Hypoaldosteronism (Normal
Inhibitors - Chronic ... Primary adrenal insufficiency ... Renin, Normal or High ... #Differential #Diagnosis ... Aldosterone #Comparison #Table
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
- Differential Diagnosis ... perspiration Renal ... #Differential #Diagnosis ... #Causes #nephrology ... #sodium #high
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic ... failure • Chronic ... Normal, Renin High ... #Hyperkalemia #Diagnosis ... #algorithm #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
- Differential Diagnosis ... Treat with a high ... • Renal Failure ... Hypothyroidism, adrenal insufficiency ... Algorithm #causes #nephrology
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
- Differential Diagnosis ... Insensible losses Sodium ... cisplatin) - Chronic ... diseases (e.g. renal ... #Table #Causes
Renal Tubular Acidosis (RTA) 
Type 1 - Failure of secretion
Type 2 - Bicarbonate wasting
Type 4 -
Renal Tubular Acidosis ... Mixed* - Inherited carbonic ... proximal features and high ... classification #nephrology ... #diagnosis
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
- Differential Diagnosis ... - Renal insufficiency ... - Diarrhea - High ... Surgical drains - Chronic ... #Workup #nephrology